diff --git a/libworkflows/__init__.py b/libworkflows/__init__.py
index 3d121f27f7866d9c1629827c3a37cf53c385ea23..2161ccfe66ef18593380c8dd00c920ca25e799cb 100644
--- a/libworkflows/__init__.py
+++ b/libworkflows/__init__.py
@@ -1,6 +1,6 @@
 __copyright__ = "Copyright (C) 2020 Blaise Li"
 __licence__ = "GNU GPLv3"
-__version__ = 0.6
+__version__ = 0.6.1
 from .libworkflows import (
     SHELL_FUNCTIONS, cleanup_and_backup, column_converter,
     ensure_relative, envmods,
diff --git a/libworkflows/libworkflows.py b/libworkflows/libworkflows.py
index 70f03881d657489f07de8c63d7a3838cae8cf596..114cf64883e2e9ae79168ce09d7291d87281193b 100644
--- a/libworkflows/libworkflows.py
+++ b/libworkflows/libworkflows.py
@@ -221,26 +221,22 @@ def run_with_modules(
 
 def envmods(
         mod_name,
-        module_versions,
-        dependency=None):
+        module_versions):
     """
     Generate a list of string representing the modules to be loaded.
 
     *mod_name* will be used as a key in the *module_versions*
     dictionary in order to get the associated version number.
 
-    If *dependency* is set, it is assumed that the dictionary
-    entry for *mod_name* is actually a sub-dictionary of dependencies
-    for module *mod_name* (including *mod_name* itself) where
-    *dependency* will be found as a key.
+    If the dictionary entry for *mod_name* is actually a sub-dictionary
+    of dependencies for module *mod_name* (including *mod_name* itself),
+    the list of modules will be those in this sub-dictionary.
     """
     if isinstance(module_versions[mod_name], Mapping):
         return list(chain.from_iterable(
-            envmods(mod_name, module_versions, dependency=dependency)
+            envmods(dependency, module_versions[mod_name])
             for dependency in module_versions[mod_name]))
-    if dependency is None:
-        return [f"{mod_name}/{module_versions[mod_name]}"]
-    return [f"{dependency}/{module_versions[mod_name][dependency]}"]
+    return [f"{mod_name}/{module_versions[mod_name]}"]
 
 
 def run_and_write_methods(